Re: [PATCH 3/5] mm: add static huge zero folio

[David Hildenbrand <david@xxxxxxxxxx>]

> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index ff06dee213eb2..f65ba3e6f0824 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -866,9 +866,14 @@ static int __init thp_shrinker_init(void)
>    	huge_zero_folio_shrinker->scan_objects = shrink_huge_zero_folio_scan;
>    	shrinker_register(huge_zero_folio_shrinker);
>    
> -	deferred_split_shrinker->count_objects = deferred_split_count;
> -	deferred_split_shrinker->scan_objects = deferred_split_scan;
> -	shrinker_register(deferred_split_shrinker);
> +	if (IS_ENABLED(CONFIG_STATIC_HUGE_ZERO_FOLIO)) {
> +		if (!get_huge_zero_folio())
> +			pr_warn("Allocating static huge zero folio failed\n");
> +	} else {
> +		deferred_split_shrinker->count_objects = deferred_split_count;
> +		deferred_split_shrinker->scan_objects = deferred_split_scan;
> +		shrinker_register(deferred_split_shrinker);
> +	}

^ disabled the wrong shrinker, but you should get the idea

--
Cheers,

David / dhildenb